03 done

Author: Miguel Bautista

03 - CSS Variables/index-START.html

@@ -21,11 +21,25 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+    :root{
+      --base: firebrick;
+      --spacing: 10px;
+      --blur: 10px;
+    }
 
+    img{
+      padding: var(--spacing);
+      background: var(--base);
+      filter: blur(var(--blur));
+    }
     /*
       misc styles, nothing to do with CSS variables
     */
 
+    .hl{
+      color: var(--base);
+    }
+
     body {
       text-align: center;
     }
@@ -47,8 +61,7 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
     }
   </style>
 
-  <script>
-  </script>
+  <script type="text/javascript" src="js/entry.js"></script>
 
 </body>
 </html>

03 - CSS Variables/js/entry.js

@@ -0,0 +1,12 @@
+let inputs = document.querySelectorAll('.controls input'); // actually returns a nodelist. Its an array-ish thing. you dont have all the array sugar.
+console.log(inputs);
+
+function handleUpdate(){
+	// let component = this;
+	let suffix = this.dataset.sizing || '';
+	// dataset is an obj that contains all the attributes from a particular element. the custom thing in data-
+	document.documentElement.style.setProperty(`--${this.name}`, this.value + suffix)
+};
+
+inputs.forEach(input => input.addEventListener('change', handleUpdate));
+inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));